Finding the Fourth Proportional to 126,159.06, 174,091.55 and 72,406.24

Step by Step Solution

1. Step 1: Write the proportion equation
   126,159.06 : 174,091.55 = 72,406.24 : x
2. Step 2: Convert to fraction form
   126,159.06/174,091.55 = 72,406.24/x
3. Step 3: Cross multiply
   126,159.06x = 174,091.55 × 72,406.24
4. Step 4: Simplify right side
   126,159.06x = 12,605,314,551.27
5. Step 5: Solve for x
   x = 12,605,314,551.27/126,159.06
6. Step 6: Final answer
   x = 99,916.05